Windmill



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WINDMILL.

APPLICATION FILED JULY 24,1920.

L E Q3 Z3Q I Patnted Jan. W, 1922,

2 SHEETS-SHEET 2.

Mp-{ kg q A TTORll/EYS ANDRE'W' J. UROWLEY, OE 1 0L301 NEW IJIEXIGO.

WINDMILL.

Application filed July 2 1', 1920.

To all whom it may concern:

Be it known that 1, ANDREW J. Cnownnr, a citizen of the United States, and a resident of Folsom, in the county of Union and State of New Mexico, have invented certain new and useful Improvements in Windmills, of which the following is a specification.

My invention relates to windmills and it consists in the constructions, combinations, and arrangements herein described and outlined with greater particularity in the appended claims.

An object of my invention is to provide an improvement over the device covered by Letters Patent No. 1,206,514, issued to me Nov. 28, 1916, said improvement consisting in the provision of different means for controlling the movements of the vanes and in the provision of other novel structure as will be hereinafter set forth.

A further object of my invention is to provide a device of the type described employing a plurality of vanes arranged to be 0prated by he force of the wind and their relative positions controlled thereby as well as by manually operable means, whereby the windmill is operated at maximum efficiency under varying wind conditions.

A further object of my invention is to provide a device of the type described that is relatively simple in construction, not likely to get out of order easily, and thoroughly practical commercially.

Other obj sets and advantages will appear in the following description and will be pointed out more particularly in the appended claims.

lwfy invention is illustrated in the accompanying drawings forming a .part of this specification, in which- Fig. 1 is a side elevation of the device, portions thereof being broken away for clearance,

Fig. 2 is a horizontal section through the device,

Fig. 3 is an enlarged detail of a portion of the device, and,

Fig. 4c is an enlarged detail of another por-- tion of the, device.

In carrying out my invention, 1 provide a central vertical shaft 1 mounted anti-frictionally for rotation upon a bearing 2 that may be supported by any suitable stand or base 3. The shaft 1 is stayed by guys 4:. The shaft 1 is provided with a gear 5 that is keyed thereto adjacent its lower end.

Specification of Letters Patent.

Patented Jan. it), 1222.

Serial no. 398,654..

pinion 6 carried at the end of a shaft 7 journailed in suitable bearings 8 is enmeshed with the gear 5 and is driven thereby. The shaft 7 is provided with a pulley 9, whence the power generated by the mill may be transmitted to any desired point.

A. plurality spaced apart bars 10 extend radially from the shaft 1 adjacent the upper end thereof. in the form of the device now preferred by me, 1 provide eight of these bars. The same number of similar spaced apart bars 11 extend radially from the shaft 1 in a plane a spaced distance below the plane occupied by the bars 10. A third set of spaced apart bars 12 extend radially from the shaft 1 in a plane intermediate the planes occupied by the bars 10 and the bars 11. it will be understood that I may provide as many sets of the bars described as desired and that each set of bars is arranged about the shaft 1 precisely in the same manner as the remaining sets of bars, corresponding bars in the different sets lying in the same vertical plane. Vertical bars 13 connect the outer ends of corresponding bars 10, 11, and 12 and maintain the different bars in each set in its respective horizontal plane. The bars 10, 11, and 12 are braced at their outer ends by horizontal bars 1 1, 15, and 16, respectively.

The structure described thus far is stayed on the shaft 1 by guys 17 and is braced by braces 18.

A. plurality of vertical shafts 19 are posi ioned and extend as shown in the drawings. the number thereof being determined by the number of radially extending bars in each set. it will be noted, that theupper portion of each of the vertical shafts 19 is join-nailed in vertically alined bearings 20 carried by corresponding bars 10, 11, and 12 adjacent their inner ends. liotatable shafts 21 have their lower ends journalled in alternate bars 11 adjacent the inner ends thereof and extend vertically above the plane the bars 10, each shaft having a bearing corresponding bars 12 and 10. A shaft is mounted for rotation in each of the is 11 at a spaced distance therealong from c point at which shafts 21 are journalled lternate bars 11. The shafts 22 extend cally through corresponding bars 12 and erminating above the latter as shown. I like manner, rotatable shafts 23, 241, L d 25 extend vertically from the bars 11 through corresponding bars 12 and 10. The

shafts are positioned adjacent the outer...

ends of the bars. The shafts 21, 22, 23, 24, and 25 are preferably spaced equi-distant apart along the radially extending bars. It will he noted that eight of each of the shafts 22, 23, 24, and 25 and four of the shafts 21 are provided in the construction illustrated in the accompanying drawings. sired number of each may be provided as the specific construction illustrated in the drawings is merely illustrative in this regard. i g

Rigidly secured to that portion of each of the vertical shafts 21, 22, 23, 24, and 25 disposed between corresponding bars 11 and 12 is a concave-convex vane 26 that extends substantially the entire vertical distance between such bars. It is to be noted that the 'vanes 26 are in closed position when disposed inthe radial plane of a supporting bar 11 and that each vane is secured to its shaft at a point nearer its outer than its inner end, the ratio being about two to one. The adjacent ends of the vanes 26 meet as shown when the latter are in their closed position. Vanes 27 which are precisely identical with the vanes 26 and similarly positioned are rigidly secured to the portions of the shafts 21, 22, 23, 24, and 25 projected between the radial bars 12 and corresponding radial bars 10. Additional vanes 28 which conform in essential respects to the vanes 26 and 27 and are similarly positioned are rigidly secured to. the portions of the bars 21, 22, 23, and 24 extending above the radial bars 10, as best seen in Fig. 1.

The shafts 21, 22, 23, 24, and 25 may be rotatably shifted by movement of arms 29, 30,

31, 32', and 33, respectively, each of which has a pivotal connectlon with a common connecting rod 34, this connection belng ef- V fected by means of pivot pins 29 .30 31,

32, and 33 respectively. The pins 31 are extended and are slidably disposed in slots 35 in arms 36 that are each pivoted at 37 to a link 38 that has a rigid connection with one of the vertical shafts 19.

A'disc 39 loosely mounted on the shaft 1 rests upon a disc 43 that is keyed to the shaft 1 adjacent its lower end. .A plurality of studs 42 project upwardly therefrom and are spaced around the outer edge of the same. The number of the studs 42 is of course determined by the number of the shafts 19.

Links 40 which each have a rigid connection with one of the shafts 19 are fashioned with slots 41 adapted to slidably receive the studs 42. The disc 43 has a portion'of its peripheral edge toothed or notched as indicated at 44. A spring actuated .detent 45 pivoted at 46 to an arm 47 that is carried by the disc 39:

Any de-- from any particular notch. Thedisc 39 may therefore be shifted rotatively with respect to the disc 43 the distance between the end notches in the toothed segmental portion of the disc 43. This distance is sufiicient to cause the movement of the vanes from opened to closed position since it is obvious that the links 40 and 38 and the arms 36 will be moved from the positions indicated by the full lines in Fig. 3 to the positions indicated by the dotted lines in the same figure, or vice versa, as the disc 39 is rotatably shifted so that the detent 45 successively/engages the end notches in the toothed segment 44.

From the foregoing description of the various parts of the device, the operation thereof may be readily understood. The slots 35 are of sufiicient length to permitthe vanes to be moved from closed to opened position by the impact of the wind when the arms 36 are in the position indicated by the full lines in Fig. 3 without the arm 36 being moved by the resultant action of the pivot pins 29*,30, 31 32 and 33, since the pins 31 will move freely in the slots When, however, the arms 36 have been moved into the positions indicated by the dotted lines in Fig. 3, the vanes are prevented from moving. into opened position and consequently little if any mill revolution will. occur because of the balanced resistances on each side of the shaft 1.. The arms 36 maybe moved to limit the movements of the vanes as desired by setting the detent 45 in any notch located between the end'notches provided in the, peripheral edge of the disc 43. Consequently, the velocity of the wind may be taken into consideration at all times and the detent 45-may be set to insure the mill being operated to produce desired results with windvelocities of different degrees.

Assuming the wind-to be blowing from the bottom of the sheet containing Fig. 2 toward the top thereof, thevanes would assume the approximate positions pictured in Fig. 2in accomplishing a counter-cloclrwise revolution of the mill when. the detent 45 is set to cause the arms 36' to-assume the positions shown therein. It is obvious that'the eii'ective force of thewind is utilized in so far as V is possible by the deflection of the wind currents by the vanes carried by each radial arm toward the vanes carried by the next succeeding radial arm. The structure may be stayed by auxiliary tie rods 50, as shown.

I claim: I 1. A wind-mill comprising a support, a vertical'shaft rotatable thereon, a plurality of radially extending arms carried by said shaft, a verticalshaft journalled in each of said radially extending arms at a spaceddistance from the first named shaft, a concavoconvex vane rigidly. secured intermediate its length to said second namedshaft, said vane being arranged to be in closed position when in the plane of its supporting radial arm and in opened position when in a plane diagonally intersecting the plane of said radial arm, and manually controlled means for varying the extent of movement of each vane in passing from closed to opened position.

2. A wind-mill comprising a support, a vertical shaft rotatable thereon, a plurality of radially extending arms carried by said shaft, a plurality of vertical shafts j ournalled in each of said radially extending arms at spaced equal distances apart alternate arms carrying the same number of said second named shafts while adjacent arms carry unequal numbers of the same, a concavo-convex vane rigidly secured intermediate its length to each of said second named shafts, said vane being arranged to be in closed position when in the plane of its supporting radial arm and in opened position when in a plane diagonally intersecting the plane of said radial arm, means for limiting the movement of the vanes carried by each radial arm, and manually controlled means for operating said last named means to change at will the extent of movement of said vanes in passing from closed to opened position, or vice versa.

3. A wind-mill comprising a support, a vertical shaft rotatable thereon, a plurality of radially extending arms carried by said shaft, a plurality of vertical shafts journalled in each of said radially extending arms at spaced equal distances apart, alternate arms supporting the same number of said second named shafts While adjacent arms support unequal numbers of said shafts, a concavo-convex vane rigidly secured intermediate its length to each of said second named shafts, said vane being arranged to be in closed position when in the approximate radial plane of its supporting arm, means for limiting the movement of the vanes carried by each radial arm and manually controlled means for operating said last named means to vary at will the distance that may be traversed by said vanes in passing from closed to opened position, said last named means including means for locking said vanes in closed position to suspend the operation of the wind-mill.

4:. In a windmill, a vertical shaft, a plurality of vanes extending in radial rows from said shaft, means for pivotally supporting said vanes, an arm carried by each vane and integral therewith, a link connecting all of the arms in one row, a plurality of vertically disposed rods carried by said vane supporting means, connections between said rods and said links, and means for rotating said rods and for locking them in any position, whereby the movement of said vanes is controlled.

5. In a windmill, a vertical shaft, a plurality of vanes extending in radial rows from said shaft, means for pivotally supporting said vanes, an arm carried by each vane and integral therewith, a link connecting all of the arms in one row, a plurality of vertically disposed rods carried by said vane supporting means, connections between said rods and said links, and means for rotating said rods and for locking them in any position, whereby the movement of said vanes is controlled, said last named means comprising a disc rigidly secured to said shaft, a second disc loosely mounted on said shaft and adapted to rest on said first named disc, means carried by said second named disc for imparting a rotary movement to said rods, and means for locking said second named disc to said first named disc.

ANDREN J. CROWLEY. 

